Sarrafa gajerun mai amfani (adana bayanan gajerun mai amfani) ɗaya ne daga cikin abubuwan da aka fi yi amfani da Redis a cikin aiki na yau da kullun — saurin sa, goyan TTL, da daidaitaccen samun dama a cikin sabobin kan sadarwa suna baka masa kyau sosai don gajerun a cikin aikace-aikace da marke, da marɗe-marɗe, wanda alkula ko hanyoyin suka yi ba sa warware ba.
Matsala da Redis ke warware
In a MULTI-SERVER app (load-balanced), where do sessions live?
✗ In-process memory (per server) → a user's session is on ONE server; subsequent
requests routed to OTHER servers don't have it (broken sessions)
✗ Sticky sessions (pin a user to one server) → uneven load, breaks on server failure
✓ A SHARED session store (Redis) → ALL servers read/write sessions from one place
→ Redis as a shared, fast session store solves the multi-server session problem.
